We did the 90 min architecture tour with guide Bob...

We did the 90 min architecture tour with guide Bobby and loved it! We enjoyed learning about the history of Chicago as expressed through the buildings, learning about how some of the buildings and bridges were built, and see the spectacular skyline. We would definitely do it again! If we were with other folks not as interested in history or design as us, then I might look for a shorter tour or one that goes out on the lake.